Effect of molybdenum on the formation of Ti6Si2B in mechanically alloyed Ti-Mo-Si-B powders
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4028/www.scientific.net/MSF.727-728.216 http://hdl.handle.net/11449/73757 |
Resumo: | This paper discusses on effect of molybdenum on the Ti6Si2B formation in mechanically alloyed and hot-pressed Ti-xMo-22Si-11B (x= 2, 5, 7 and 10 at%) alloys. High-energy ball milling and hot pressing were utilized to produce homogeneous and dense materials, which were characterized by scanning electron microscopy, X-ray diffraction, electron dispersive spectrometry, and Vickers hardness. The excessive agglomeration during milling was more pronounced in Moricher powders, which was minimized with the formation of brittle phases. Hot pressing of mechanically alloyed Ti-xMo-22Si-11B powders produced dense samples containing lower pore amounts than 1%. Ti6Si2B was formed in microstructure of the hot-pressed Ti-2Mo-22Si-11B alloy only. In Mo-richer quaternary alloys, the Ti3Si and Ti5Si3 phases were preferentially formed during hot pressing. Oppositely to the ternary phase, the Ti3Si phase dissolved a significant Mo amount. Vickers hardness values were reduced in hot-pressed Ti-xMo-22Si-11B alloys containing larger Mo amounts, which were dissolved preferentially in Ti solid solution. © (2012) Trans Tech Publications, Switzerland. |
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Effect of molybdenum on the formation of Ti6Si2B in mechanically alloyed Ti-Mo-Si-B powdersHigh-energy ball millingHot pressingTitanium alloyDense materialsMechanically alloyedQuaternary alloysTernary phaseAlloysBall millingMolybdenumMolybdenum alloysPowdersScanning electron microscopySiliconX ray diffractionTitanium alloysThis paper discusses on effect of molybdenum on the Ti6Si2B formation in mechanically alloyed and hot-pressed Ti-xMo-22Si-11B (x= 2, 5, 7 and 10 at%) alloys. High-energy ball milling and hot pressing were utilized to produce homogeneous and dense materials, which were characterized by scanning electron microscopy, X-ray diffraction, electron dispersive spectrometry, and Vickers hardness. The excessive agglomeration during milling was more pronounced in Moricher powders, which was minimized with the formation of brittle phases. Hot pressing of mechanically alloyed Ti-xMo-22Si-11B powders produced dense samples containing lower pore amounts than 1%. Ti6Si2B was formed in microstructure of the hot-pressed Ti-2Mo-22Si-11B alloy only. In Mo-richer quaternary alloys, the Ti3Si and Ti5Si3 phases were preferentially formed during hot pressing. Oppositely to the ternary phase, the Ti3Si phase dissolved a significant Mo amount. Vickers hardness values were reduced in hot-pressed Ti-xMo-22Si-11B alloys containing larger Mo amounts, which were dissolved preferentially in Ti solid solution. © (2012) Trans Tech Publications, Switzerland.Universidade do Vale do Paraíba Instituto de Pesquisa e Desenvolvimento, Av. Shishima Hifumi 2911, 12244-000 São José dos Campos-SPUniversidade Estadual Paulista Faculdade de Engenharia de Guaratinguetá Departamento de Materiais e Tecnologia, Av. Ariberto Pereira da Cunha 333, 12506-410 Guaratinguetá-SPUniversidade Federal de Alfenas Campus de Poços de Caldas Instituto de Ciência e Tecnologia, Rodovia José Aurélio Vilela 11999, 37715-400 Poços de Caldas-MGUniversidade Estadual Paulista Faculdade de Engenharia de Guaratinguetá Departamento de Materiais e Tecnologia, Av. Ariberto Pereira da Cunha 333, 12506-410 Guaratinguetá-SPInstituto de Pesquisa e DesenvolvimentoUniversidade Estadual Paulista (Unesp)Instituto de Ciência e TecnologiaNunes, Perseu AmaralRamos, Alfeu Saraiva [UNESP]Trindade Ramos, Erika Coaglia2014-05-27T11:27:10Z2014-05-27T11:27:10Z2012-11-26info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject216-221http://dx.doi.org/10.4028/www.scientific.net/MSF.727-728.216Materials Science Forum, v. 727-728, p. 216-221.0255-5476http://hdl.handle.net/11449/7375710.4028/www.scientific.net/MSF.727-728.2162-s2.0-84869478486Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Science Forum0,180info:eu-repo/semantics/openAccess2024-07-02T15:04:24Zoai:repositorio.unesp.br:11449/73757Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:06:04.595302Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of molybdenum on the formation of Ti6Si2B in mechanically alloyed Ti-Mo-Si-B powders |
title |
Effect of molybdenum on the formation of Ti6Si2B in mechanically alloyed Ti-Mo-Si-B powders |
spellingShingle |
Effect of molybdenum on the formation of Ti6Si2B in mechanically alloyed Ti-Mo-Si-B powders Nunes, Perseu Amaral High-energy ball milling Hot pressing Titanium alloy Dense materials Mechanically alloyed Quaternary alloys Ternary phase Alloys Ball milling Molybdenum Molybdenum alloys Powders Scanning electron microscopy Silicon X ray diffraction Titanium alloys |
title_short |
Effect of molybdenum on the formation of Ti6Si2B in mechanically alloyed Ti-Mo-Si-B powders |
title_full |
Effect of molybdenum on the formation of Ti6Si2B in mechanically alloyed Ti-Mo-Si-B powders |
title_fullStr |
Effect of molybdenum on the formation of Ti6Si2B in mechanically alloyed Ti-Mo-Si-B powders |
title_full_unstemmed |
Effect of molybdenum on the formation of Ti6Si2B in mechanically alloyed Ti-Mo-Si-B powders |
title_sort |
Effect of molybdenum on the formation of Ti6Si2B in mechanically alloyed Ti-Mo-Si-B powders |
author |
Nunes, Perseu Amaral |
author_facet |
Nunes, Perseu Amaral Ramos, Alfeu Saraiva [UNESP] Trindade Ramos, Erika Coaglia |
author_role |
author |
author2 |
Ramos, Alfeu Saraiva [UNESP] Trindade Ramos, Erika Coaglia |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Instituto de Pesquisa e Desenvolvimento Universidade Estadual Paulista (Unesp) Instituto de Ciência e Tecnologia |
dc.contributor.author.fl_str_mv |
Nunes, Perseu Amaral Ramos, Alfeu Saraiva [UNESP] Trindade Ramos, Erika Coaglia |
dc.subject.por.fl_str_mv |
High-energy ball milling Hot pressing Titanium alloy Dense materials Mechanically alloyed Quaternary alloys Ternary phase Alloys Ball milling Molybdenum Molybdenum alloys Powders Scanning electron microscopy Silicon X ray diffraction Titanium alloys |
topic |
High-energy ball milling Hot pressing Titanium alloy Dense materials Mechanically alloyed Quaternary alloys Ternary phase Alloys Ball milling Molybdenum Molybdenum alloys Powders Scanning electron microscopy Silicon X ray diffraction Titanium alloys |
description |
This paper discusses on effect of molybdenum on the Ti6Si2B formation in mechanically alloyed and hot-pressed Ti-xMo-22Si-11B (x= 2, 5, 7 and 10 at%) alloys. High-energy ball milling and hot pressing were utilized to produce homogeneous and dense materials, which were characterized by scanning electron microscopy, X-ray diffraction, electron dispersive spectrometry, and Vickers hardness. The excessive agglomeration during milling was more pronounced in Moricher powders, which was minimized with the formation of brittle phases. Hot pressing of mechanically alloyed Ti-xMo-22Si-11B powders produced dense samples containing lower pore amounts than 1%. Ti6Si2B was formed in microstructure of the hot-pressed Ti-2Mo-22Si-11B alloy only. In Mo-richer quaternary alloys, the Ti3Si and Ti5Si3 phases were preferentially formed during hot pressing. Oppositely to the ternary phase, the Ti3Si phase dissolved a significant Mo amount. Vickers hardness values were reduced in hot-pressed Ti-xMo-22Si-11B alloys containing larger Mo amounts, which were dissolved preferentially in Ti solid solution. © (2012) Trans Tech Publications, Switzerland. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-11-26 2014-05-27T11:27:10Z 2014-05-27T11:27:10Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.4028/www.scientific.net/MSF.727-728.216 Materials Science Forum, v. 727-728, p. 216-221. 0255-5476 http://hdl.handle.net/11449/73757 10.4028/www.scientific.net/MSF.727-728.216 2-s2.0-84869478486 |
url |
http://dx.doi.org/10.4028/www.scientific.net/MSF.727-728.216 http://hdl.handle.net/11449/73757 |
identifier_str_mv |
Materials Science Forum, v. 727-728, p. 216-221. 0255-5476 10.4028/www.scientific.net/MSF.727-728.216 2-s2.0-84869478486 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Materials Science Forum 0,180 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
216-221 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808129392319135744 |